I downloaded version 2010.30 from the link in post #27, renamed the file gmapsupp.img, unlocked it with Fast IMG Unlocker 1.5 and placed the resulting file in a folder named Garmin on an SD card.
On my nüvi 350, the map will not show up in the Map Info menu. It does not show detailed maps of India either when zooming in on India.
On my nüvi 250W, the map works fine.
Any suggestions???
Edit (update):
Placed the locked version of the map on the SD card, combined with an .UNL file (code generated with JM Unlock Generator v1.5). Same result: map is recognized on the nüvi 250W but not on the 350. On the 350 no error message shows, no green "progress bar" showing (like when a map is loading the first time). The nüvi 350 acts as if the SD card is not in the unit. To rule out a possible defect of the SD card slot, I have placed the locked gmapsupp.img file with associated .UNL file in the internal memory of the unit. Same result: the nüvi 350 starts up as if no map of India has ever been present. Tried the same with the unlocked version of gmapsupp.img. Same result. Final attempt was to rename the file in the internal memory to gmapprom.img. Did not fix anything either. What am I doing wrong (if anything)?



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